The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 02, 2006
Filed:
Feb. 22, 2002
Michael Agnes, Bel Air, MD (US);
Allyn Boyce, Baldwin, MD (US);
Hung Du, Reisterstown, MD (US);
Earl Ortt, Bel Air, MD (US);
Brandon Verbrugge, Towson, MD (US);
Richard T. Walter, Baldwin, MD (US);
Ren H. Wang, Timonium, MD (US);
Jiaqi Zhang, Cockeysville, MD (US);
Michael Agnes, Bel Air, MD (US);
Allyn Boyce, Baldwin, MD (US);
Hung Du, Reisterstown, MD (US);
Earl Ortt, Bel Air, MD (US);
Brandon Verbrugge, Towson, MD (US);
Richard T. Walter, Baldwin, MD (US);
Ren H. Wang, Timonium, MD (US);
Jiaqi Zhang, Cockeysville, MD (US);
Black & Decker Inc., Newark, DE (US);
Abstract
A cylindrical magnet ring assembly having a cylinder magnet flux ring () formed with a plurality of inwardly projecting anchors (); a plurality of permanent magnets (), wherein the magnet can be formed with step portions () in the inner radial surface; a molded plastic member () being molded around the magnets and anchors to secure the magnets to a surface of the cylinder flux ring. There are several variations of the embodiments of the invention. Few embodiments are the following: in one aspect of the invention, magnets are inserted into magnet molded around an assembly ring () and the molded plastic secures the assembly ring to the flux ring; in another aspect, there are two assembly rings, a first assembly ring (is inserted into the one side of the cylinder flux ring then the second assembly ring is inserted into the other side of the cylinder flux ring and mated to the first assembly ring, after that the molded plastic secures the two assembly rings. The foregoing cylindrical magnet ring assembly is used in a stator of a motor which is used in a power tool.